Securing of tires on the wheels of road-vehicles.



LQ358A61.

R.RE1D.

SECURING 0F TIRES ON THE WHEELS OF ROAD VEHICLES. APPLICATION FILEDJAH.14. 1915.

Patented Mar. 5, 1918.

ROBERT REID, OF GLASGO'W, SCOTLAND.

SECURING- OF TIRES ON THE WHEELS OF ROAD-VEHICLES.

Application filed January 14, 1915.

To uZl whom it may concern:

Be it known that I, ROBERT REID, manager, a subject of the King of GreatBritain and Ireland, and a resident of Glasgow, Scotland, have inventednew and useful Improvements in the Securing of Tires on the lVheels ofRoad-Vehicles, of which the following is a specification.

This invention has reference to and comprises improvements in andrelating to the securing of tires on the wheels of road vehiclcs.

In a wheel constructed according to the improvements of this invention ametal felly binding band having its outer surface or periphery taperedor inclined at an angle to its inner surface is fitted around the tellyand the resilient tread portion of the tire is vulcanized to a metalband arranged to encircle the said felly binding band. A series of metaltransverse wedges are fitted between said two bands at spaced distancesapart and wooden blocks or wedges are arranged between each pair ofmetal wedges. Transverse bolts passing through the wedges and throughthe usual detachable side ring flanges securely hold the said wedges inposition while the creeping of the wedges or of the tread portion of thetire around the folly binding band is prevented by transverse tongues inthe wedges engaging in transverse grooves in the bands or vice versa.

In wheel tires of the above type, diliiculty which is sometimesexperienced in removing the tire is often caused by the steel wedges andbands rusting together and when a comparatively large surface of thewedges and bands are in contact this diliiculty is increased. In tiresof the solid class it is practically necessary to support the tiresaround the greater part of their clrcumferencc. This tire is easilydetachable from the wheel, the aforesaid ditliculty being overcome, bydecreasing the area of the contacting surfaces of the wedges while thetire is still adequately supported around the greater part of itscircumference.

F or convenience of explanation the sides of the wedges which bearagainst the bands are hereafter termed the non-parallel sides while theother sides are termed the parallel sides.

Instead of the wooden wedges aforesaid. a space is left between eachpair of wedges and in order that the wedges may be driven into and outof position with greater facility Specification of Letters Patent.

Patented Mar. 5, 19-18. Serial No. 2,222.

than heretofore, the amount of bearing surface of each wedge isdecreased without changing the distance apart of the parallel sides ofthe wedges. This is accomplished by forming grooves, preferablysemi-circular in section, in the non-parallel surfaces of the wedges.

I n applying these improvements to a twin tire the wedges on one side ofthe wheel which is fitted with a felly binding band of a double inclinedformation are arranged at spaced distances apart, while the wedges onthe other side of the wheel are similarly arranged, but the wedges onthe one side are opposite the spaces on the other side so thattransverse binding bolts are passed tl'irough one of the grooves incertain of the Wedges and through the opposite space, and the spaces areof such a size that the bolts can pass freely through them.

In the single tire the bolts are passed through one of the grooves incertain of the wedges, or it may 'e through certain of the spacesbetween the wedges.

It will be observed that in the twin tire the wedges may be easilyremoved by first removing the usual side flanges or rings, theninserting a rod-like tool through the space against the inner end of thewedge and knocking out the wedge by a blow from a hammer. By passing thebolts through grooves in the wedges the bolts and wedges will not haveas great a tendency to rust together as they would have if the boltswere passed through holes in the wedges.

One of the wedges may be fitted with the key and groove arrangements forpreventing creeping and a transverse hole may be ormed through thecenter of this wedge. The other wedges are formed with a smallprojecting tongue or guiding member which slides in a groove in thetelly binding band so as to space the wedges an equal distance apartaround the band.

By this construction of wheel the weight of same will be less and therewill also be a saving in material, both these advantages being due tothe spaces between each pair of wedges and to the grooves in the wedges,while the appliances will be applicable to all standard makes of bandtires.

In order that others skilled in the art to which this invention relatesmay properly understand the same I have hereunto appended one shcet ofexplanatory drawings in which Figure l is a transverse sectional Qteacher elevation oi? a wheel tire constructed according to theimprovements of this invention. Fig. 2 is a side elevation, broken away,and corresponding to Fig. 1, but with the usual detachable side ringflanges removed. Fig. 3 is a view similar to Fig. 1 but illustrating theapplication of the improvements of this invention to a twin or duplextire. 'is a plan view, broken away, and corresponding to Fig. 8, butwith the resilient tread portion of the tire and its hand re moved, andFig. 5 is a fragmentary sect-ion illustrating a modification.

Referring to these drawings ln carrying the improvements of this invention into efiect or practice the telly binding band a which issecured to the telly b has its outer periphery tapered or angled asshown by Fig. 1. In the duplex tire this outer surface or periphery isformed with a double inclination or taper as shown at a in Fig. 3. Theresilient tread part 0 of the tire vulcanized to the metal band (Z isadapted to encircle the wedges 0 arranged between the same and the banda at spaced distances apart, so that a space 7, or it may be a woodenwedge, is left between each wedge e and its neighbor. the creeping ofthe tire may be prevented by keys 9 formed on one of the wedges e andengaging in grooves formed in the hands a and (Z as shown in Fig. 2 orthe grooves may be termed in the wedge and the keys on the bands, whilethis wedge is 'formed with a hole on so as to lighten. same.'llransverse. grooves k are formed in the sides of each wedge 6 adjacentthe band a, and the bolts 2' pass through one of the grooves h incertain of the wedges e and through the usual side ring flanges y" andare secured by nuts 70 in the usual manner.

lilach wedge is formed with a small tongue or guiding member Z whichslides in a groove in the bands so as to space the wedges e at equaldistances apart around said'band a.

What li claim and desire to secure by Letters Patent is lhe combinationin a wheel of a telly; a metal band thereon of a thickness increasingfrom one edge at least as tar as its central plane; a resilient tire; asecond metal band carrying the tire; wedges extending transversely ofthe wheel between said bands and having open grooves in their faces,with retaining bolts passing through certain of said grooves 50 as to beexposed.

lln testimony whereof, I have signed my name to this specification, inthe presence 0 two subscribing witnesses.

ld-QBEBT REID.

ltVitnesses;

dorm STEWARD,

C. 'lsroarson.

